<template>
 <div class="app-container">
    <div style="line-height: 40px; font-weight: 700; font-size: 22px; color: #a85a11; margin-left: 10px;">讲师列表</div>
    <!--查询表单-->
    <el-form :inline="true" class="demo-form-inline">
      <el-form-item>
        <el-input v-model="teacherQuery.name" placeholder="讲师名"/>
      </el-form-item>

      <el-form-item>
        <el-select v-model="teacherQuery.level" clearable placeholder="讲师头衔">
          <el-option :value="1" label="高级讲师" />
          <el-option :value="2" label="首席讲师" />
        </el-select>
      </el-form-item>

      <el-form-item label="添加时间">
        <el-date-picker v-model="teacherQuery.begin" type="datetime" placeholder="选择开始时间" value-format="yyyy-MM-dd HH:mm:ss"
          default-time="00:00:00" />
      </el-form-item>
      <el-form-item>
        <el-date-picker v-model="teacherQuery.end" type="datetime" placeholder="选择截止时间" value-format="yyyy-MM-dd HH:mm:ss"
          default-time="00:00:00" />
      </el-form-item>

      <el-button  type="primary" icon="el-icon-search" @click="getList()">查询</el-button>
      <el-button  type="default" @click="resetData()">清空</el-button>
    </el-form>

    <!-- 表格 -->
    <el-table :data="list" v-loading="listLoading" element-loading-text="数据加载中" border fit highlight-current-row>

      <el-table-column label="序号" width="70" align="center">
        <template slot-scope="scope">
          {{ (page - 1) * limit + scope.$index + 1 }}
        </template>
      </el-table-column>

      <el-table-column prop="name" label="名称" width="80" />

      <el-table-column label="头衔" width="80">
        <template slot-scope="scope">
          <!-- ===判断类型和值 -->
          {{ scope.row.level===1?'高级讲师':'首席讲师' }}
        </template>
      </el-table-column>

      <el-table-column prop="intro" label="资历" />

      <el-table-column prop="gmtCreate" label="添加时间" width="160" />

      <el-table-column prop="sort" label="排序" width="60" />

      <el-table-column label="操作" width="200" align="center">
        <template slot-scope="scope">
          <router-link :to="'/teacher/edit/'+scope.row.id">
            <el-button type="primary" size="mini" icon="el-icon-edit">修改</el-button>
          </router-link>
          <el-button type="danger" size="mini" icon="el-icon-delete" @click="removeDataById(scope.row.id)">删除</el-button>
        </template>
      </el-table-column>
    </el-table>

    <!-- 分页 -->
    <el-pagination :current-page="page" :page-size="limit" :total="total" style="padding: 30px 0; text-align: center;"
      layout="total, prev, pager, next, jumper" @current-change="getList" />
  </div>
</template>

 <script>
 import teacherApi from "@/api/edu/teacher";

export default {
  data() {
    return {
      listLoading:true,
      list: null, //查询之后接口返回集合 -数据
      page: 1, //当前页
      limit: 10, //每页记录数
      total: 0, //总记录数
      teacherQuery: {}, //条件封装的对象 v-model双向绑定
    };
  },
  created() {
    //调用
    this.getList();
  },

  methods: {
    getList(page = 1) {
      //讲师列表的方法
      this.page = page;
      this.listLoading=true;
      teacherApi
        .getList(this.page, this.limit, this.teacherQuery)
        .then((response) => {
          //请求成功
          //response接口返回的数据
          console.log(response)
          this.list = response.data.items;
          this.total = response.data.totalCount;
          this.listLoading=false;
        })
        .catch((error) => {
          //请求失败
          console.log(error);
        });
    },

    resetData() { //清空按钮的方法
      //清空已输入数据
      this.teacherQuery = {}
      //查询所有  恢复未进行条件查询的状态
      this.getList()
    },

    removeDataById(id) { //删除讲师按钮的方法
      this.$confirm('此操作将永久删除讲师信息, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).then(() => {

        teacherApi.deleteTeacherById(id)
          .then(response => { //删除成功
            //提示信息
            this.$message({
              type: 'success',
              message: '删除成功'
            });
            //回到列表页面
            this.getList()
          })
      }).catch((response)=>{
         // console.log(response);
      })      
    }
  }
 
};

</script>